Magnifier



May 1, 1928.

' 1,668,283 DDH. OMEARA HAGNIFIER Filed Sept. 25. 1 24 wimf ii 13B?nigNiflE-NToR.

i as shown in Figure 4;i-

Patented May 1, 1928.

UNITED STATES. PATENT OFFICE; Dams HENJRQY da e, or nE'rnoIr, mronronn,nssrenon. T0 nmnaroan orrroan H CQMPANY, or soo'rnnnrnon, mssacnusnrrs,A VOLUNTARY nssocrarron or nassnonvsarrs ---app11majnne September 25,1924. Serial no. 739,862. I

This invention relates to improvements in magnifiers, and has particularreference to magnifiers which are especially adapted for reading orclose inspection work.

An important object of the present inven tion is to provide a magnifierwhereby a lens may be positivel held at-adefinite distance from theobject eing viewed. 1

Another object is to'provide such a device wherein the lens may beadjusted to different positions so as to be capable of'usein differentways.

Anotherobjectis to provide such a device wherein the lens will besecurelyheld in the various selected positions. 1

Another object is to provide such a device which will be {compact andconveniently portable. r V I Other objects and advantages should beapparent from the following specification when taken in connection withthe accompanying drawings, wherein is shown for the purposes ofillustration one embodiment of the invention; i I

In the drawings: 7 r V Figure 1 is a front elevation of a preferred formof theinvention; a

Figure 2 is a side elevation thereof; Figure 3 is a vertical sectionalview line 3+3 of Figure l; p p t Figure 4 is a side elevationillustrating the lens'in an adjustedposition; i

F i-gure 5 is a front'elevation of the device on the 7 view showing thelens in still another operative position; V

Figure 7 is a front elevation showing the lens completely extended'fromits supportin frame; i Figure 8 is a fragmentary sectional view on theline 8-8 of'Figure 7 and Figure 9 is a side elevation of the deviceillustrating still another possible operative position. j i -Referringparticularly to Figures 1, 2 and 3, it will be seen that an open framemember 10 is provided preferably of annular for-111, said frame beingsplit asat 11, andhaving reduced meeting ends 12 at its split portion;

Figure 6 is a similar A pair offin er grips 13 are provided, asshown,secure to the frame 10 and s aced from each other, preferably anequa distance from the meeting ends 12. While these finger gri s 13 maybe of any suitable shape, I have il ustrated them as being in theoutward direction, and as best shown in the form of curved earsextending in a general side elevation, their central portion is widenedas at 14 for the purpose of ready manipulation.- The frame inember'lOand i the finger grips l3 may be integrallyfformed asby an aluminum orbronze casting, or they may bemade of separate pieces brazed or solderedtogether. A continuous lensrim 15isadap'tedt0 carry a magnifying lens 16of any suitable optical power, and extending outwardly diameter of theframe 10, and the two members are eccentrically positioned with relationto one another so that the periphery of from one side of the rim 15 area pair of lugs 12 o'fthe split frame. The diameter of the rim 15 isslightly less than the internal the rim 15 comes in frictional contactwith r the inner surface of the frame 1Oat'the point 18: By thisarrangement it will be 1 obvious'that when the lens and its containingrim are folded onto the frame member 10 they will; be securely held inplace by virtue of the frictional contact. 1

In the use of thismagnifier the finger If desired, the lens containingrim 15 may be. swung; outwardly from the: frame 10 to: a

position at right angles thereto, as clearly shown in Figures 4 and 5.When thlSJS done the bottom edge ofthe frame 10may be rested upon atableor other suitable WOIk- I ing surface, upon whioh the object; to bemagnified isplaced, and because offthe fact that the width of the framemember 10 is snbstantiall "equalto the focal len h of the. lens 16 gooresults may be had.

t will be seen that in this form the focal distanoe of the frame 10,similar to that s ownin Fig ure 4, after which the whole structure isrolled slightly upon the periphery of the frame member 10, whereby thelens ispositio'rned at an angleinrel'ation to the supporting table. Somepeople may desire to use the instrument in this wa and here also as inthe preceding form, t e focal. distance may always be accuratelmaintained.

Some peoplemight nd: the finger griping portions;- 13 too smallfor theirown individual use and, therefore, require a 7 larger grippin means;

only to swing t e lens rim Lithrough an are If so, they need 180.degrees, whereby it will. be completely extended from the fname 10, asclearly shown in Figure7. Itwill be herenoted that theform of the grips;13 and the distance betwecnthem is so; designed that when the lens is inthis extendedposition there will be;

frictional contact between the lens rim. and the ears 13, as at thepoint oft'angency 19; Thus; when the lens is so extended it will befirmly held in such operative position and the personusing; same maygrasp the frame 10 in thepalm 015 his hand and the finger grips- 13.between his fingers, as will bereadily apparent.

In Figure 9 thelensrim isshown inan-interme'diateposition, wherebyit maybe used,

as.- a: reading glass, the whole. frame memberlfl restin'g upon thesurface of the book or other; ob ect, being viewed andfthe vision.

through, the lens. being oblique;

- By forming themeeting endsof the framev 10to: a reduced diameter as at12, a pair. of shoulders 20' are: produced and; it is. to be notedthatithenormali distance between said shonldersis: slightly less,- thanthe distance-be.- tween the outer surfacesgof'theears 17. .With thisconstruction, it is necessary,vv in order to assemble the, lens rim 15in the frame returning to 161 that the open: end of the, frame he forcedapart so; that the reduced ends 12 ma. be slipped, into the, ears-17.Thus t e frame 10, is constrained from. its initial form and as a conseuence there always a frictional contact: yr the shoulders 20 againstthewfaces of the pivot earsv 17 whereby the rim; l firmay be adjusted toseveral different posi;. tionszand such adjusted positions; maintainedby=-the frictional contact. 7

From the foregoin it will be obvious, that,

bani improved magni r has been produced,

which will be capable of many uses, and 1n view of: the fact that itisso readily foldable;

it-Vmay easily be carried a pocket, or; purse,

etc. The device is neat in appearance and will be strong and durable inservice. Obviously, changes may be resorted to in the minor details ofconstruction, and the right is herein reserved to make such changesfalling within the scope of the claims without departing from the.spiritof the invention.

Having thus described my invention, I claim:

1. A device of the character described comprising a surroundin openFrame, a-lens pivoted within the frame so: as toliewithin the open framein the thereof and alsoso as to be swung at ri t angles to the frame on;its: piv0t,,theheig t of said frame being equal substantially to thefocal length of: thelens 2. In a: device; 'ofthe character 7 described!compri f a surrounding opemiframmalens pivoted Wlthil}. thev framagsoasto lie; therewithin in'theplane of the: and also so. as to be swung; onits pivot to: desired angle with the; frame extending" spacedmembers onthe outside at thiefmmeadapt. ed to frictionally engage: between; them.the periphery of the lens v'vhenlit is'rotatedi sub stantially 180degreesun its pivot. from its position within the frame and to hold;the? lens therebetwecn in extended. position. i

3. A, device. of the charaeter described.

comprising a surrounding openofran e, alena pivoted within the frame 9'0asltp. lie therewithin in plane of the frame, and so as to be swung onits pivot to .deained angle with the: frame, extending; spaced memberson-the outeideof the frame adap ed V to frictionally engage between themthe;

peripheryQof. the lens when. it iii-(rotated.

substantially 180 degraesen its; pivot fr m its position within theframe and. to; hold the lens therebetween in Qxtandedgpqa'tien,

and resilient means adapted to urge: the

extending members; against the: periphery of: thelensiy .r 41 In adevice of theclmnacter described, a surrounding open frame, a;lenspivoted within: the: fnameso as ta lie. thenewithin in the plane oftherframe, means adapted. to hold: the: fhamein exte dfi position whenit has been rotated substantially; 90 degreeson, it's pivot, the height.of. the frame be: substantially the same as theleng t fi of the lens,and extendim means to frictionally hold batman them the; periphery ofthe lens when it has been; rotatedsubstantialliy 1-80,- degreespn itsaxis. in

5. In a device of thechamacter described an, open surroundingfraane, alens pivoted within the frame; to lie therewithinimfthe-g plane of theframe, means adapted to, hold the lens in extended jpei-litiom when. it;has been rotated substantially 90 v pivot, in which position theheigfilt/ of the frame is: substantially: equal to, the focal length ofthe lens, meansadapted to hold degree s on its;

the lens in extended position when it has been rotated substantially 180degrees from its position within the frame, and resilient means adaptedto urge the lens holding means to hold the lens in extended position.

6. In a device of the character described, a split resilient framehaving a spring tendency to close the split ends and having extendingfinger portions and a lens having a projecting hinge member engaged bythe 10 split ends, said lens being frictionally held in the split framewhen closed and between the finger portions when open and in anyposition in between through the resiliency of the split frame.

DENIS HENRY OMEARA.

